Comfort starts with the right foundation, especially when you&';re spending long days on the water. The Patagonia Ultralightweight Liner Socks are designed to provide a smooth, lightweight layer between your feet and your primary socks, helping you stay comfortable whether you&';re wading a trout stream, hiking into remote fishing destinations, or simply going about your day. Constructed from a fast-drying blend of 95% recycled nylon and 5% spandex, these versatile liner socks combine a soft, smooth feel with enough stretch to provide a comfortable, formfitting fit. Their low-density knit keeps bulk to a minimum, making them an excellent choice for layering beneath heavier fishing or hiking socks without adding unnecessary thickness inside your wading boots. For fly fishermen, a good liner sock can make a noticeable difference during long days on the river. The Ultralightweight Liner Socks provide an additional layer between your skin and your outer socks, helping reduce friction and improving overall comfort when you&';re walking, wading, or standing for extended periods. The 3/4-length crew design provides practical coverage while remaining lightweight and unobtrusive. The smooth construction allows the socks to slide comfortably beneath thicker layers, while the engineered Patagonia logo is knitted directly into the fabric to help eliminate unnecessary bulk. Although they&';re particularly useful as liners beneath heavier fishing socks, these socks are equally comfortable worn on their own. Their lightweight, quick-drying construction makes them a great option for warm-weather fishing, travel, hiking, and everyday use. Made at a family-run factory in the United States, the Patagonia Ultralightweight Liner Socks combine simple, functional design with recycled materials and dependable everyday versatility. Features Ultralightweight, low-density knit minimizes bulk and provides a smooth, comfortable feel Fast-drying fabric helps manage moisture during active use Made from 95% recycled nylon and 5% spandex Formfitting construction provides a comfortable, secure fit Designed to be worn as liner socks or independently Smooth fabric allows easy layering beneath fishing and hiking socks Helps reduce friction between the foot and outer sock layers 3/4-length crew design provides versatile coverage Engineered Patagonia logo minimizes unnecessary bulk Stretch fabric accommodates natural foot movement Lightweight design works well inside wading boots and hiking footwear Suitable for freshwater fishing, saltwater fishing, hiking, travel, and everyday wear Made at a family-run factory in the USA Specifications Specification Details Product Ultralightweight Liner Socks Style Number 49987 Fabric 95% Recycled Nylon / 5% Spandex Construction Ultralightweight, Low-Density Knit Length 3/4 Crew Fit Formfitting Weight 1.4 oz. (40 g) Country of Origin USA Care Instructions Machine wash warm Do not bleach Tumble dry low Do not iron Lightweight Comfort for Long Days on the Water When you&';re hiking into a remote trout stream or spending an entire day in your waders, small details can make a big difference in comfort. The Patagonia Ultralightweight Liner Socks provide a lightweight foundation that layers easily beneath your favorite fishing socks without creating excess bulk inside your boots. Their smooth, fast-drying construction makes them particularly useful for anglers who want a comfortable layer beneath heavier socks, while their versatile design means they&';re equally practical for warm-weather adventures and everyday wear. Whether you&';re preparing for a full day of wading, heading out on a backcountry fishing trip, or looking for a lightweight everyday sock, the Patagonia Ultralightweight Liner Socks deliver the comfort, simplicity, and functionality you need. Light on your feet. Comfortable all day. Ready for wherever the fishing takes you.